Variable Star CH Cyg


CH Cyg = AN 1924.0024 = BD +49 2999 = CRL 2383 = HD 182917 = IRC +50294 = SAO 031632 

GCVS result

ID: 310109
Variable star: CH Cyg
RA 2000: 192433.1
DE 2000: +501429
RA 1950:
DE 1950:
Type of variability: ZAND+SR
Max (mag): 5.60
Min (mag): 8.49
Photometric system: V
Epoch (JD):
Period (d):
Year of outburst for N, SN:
M-m (or D):
Spectrum: M7IIIab+Be
Study reference: 08849
Chart or phot. ref.: 00002
Cases of non-existence:

GCVS NOTE result

"Semiregular light variations with the mean cycle 97d mean brightness varies with the cycle ~4700d [01169]. There are also a cycle 725d [08849], rapid oscillations (A <= 0.25m U) and flares [05350]. It is not excluded that the system is an eclipsing one [06499].

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA: Variable star CH Cyg not found.

MEKA result

Variable star: CH Cyg
Type of variability: ZAND+SR
Points: 1
Max (mag): 7,0
Min (mag): 10,4
Photometric system: V
Period (d):
B-V: 1,30
Finding chart: ID: 028, M I

DSS plate 15'x 15'

Image from the Digitized Sky Survey at the STScI Archive.


Please put the variable's designation into field in common style - for example: ZUMa, zuma, V477Cyg, v1182Cyg, NSV 255, nsv2544. Designation of bright variable stars like Beta Persei type in short style (three letters) - bet Per. The complete cross-identification among more then 30 catalogues will be done after submitting.
Spaces and cases are ingnored..

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 GCVS (2011)  43.675 records
 NSV (1997) 14.811 records
 BRKA (2001)  1.432 records
 MEKA (2001)  147 records
 CzeV, SvkV and RafV catalogues (new variables)
 BCVS (1994)  529.953 records
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